MONITORING IN THE PROJECT REPORTS

How treatment and digital monitoring work

The VPA1 and VPA2 monitoring reports describe a system combining water treatment, connected instruments and cloud-based analytics. The explanation below follows those reports and their reporting periods.

Source: VPA2 monitoring report, p. 5 and section B.1.

From field readings to reviewable information

Sources: VPA1 monitoring report, pp. 26-33; VPA2 monitoring report, pp. 13-16.

Physical measurements and virtual sensor estimates

The VPA2 equipment specifications distinguish physical instruments from AI-driven virtual sensors. This distinction helps explain what a displayed result represents.

Source: VPA2 monitoring report, pp. 14-16. The lists describe the report’s equipment specifications, rather than a site-by-site installation inventory.

How data quality is checked

The VPA1 report describes a combination of automated checks and human review:

• Flag unusual readings. Range, plausibility and rate-of-change checks help identify results that need investigation.
• Keep an audit trail. Abnormal or zero readings are retained with status flags while staff compare operational telemetry, readings over time and relevant laboratory results.
• Preserve reporting boundaries. The report describes model-version records, frozen reporting snapshots and links to site IDs and timestamps for emission-reduction reporting.

It also describes escalation to the responsible government water officials for operational action. Monitoring alerts do not themselves mean that the system automatically shuts down the water supply.

Source: VPA1 monitoring report, pp. 31-33.

Explore the supporting reports

VPA1 official monitoring documents (new tab)
Monitoring period: 1 February 2025 – 28 October 2025.

VPA2 official monitoring documents (new tab)
Monitoring period: 2 June 2025 – 31 December 2025.

This summary describes the documented monitoring approach. Monitoring records, laboratory evidence and certification decisions are separate sources of evidence. For credit calculation assumptions, see Methodology & Baseline.

DOCUMENTED INSTALLATIONS

Installation timeline and reporting coverage

The monitoring reports describe installations in Anantapur district, Andhra Pradesh, India. Installation dates and monitoring periods answer different questions: when equipment was installed, and which period a report covers.

Sources: VPA1 report, pp. 2 and 11-12; VPA2 report, pp. 2 and 9-11. Counts refer to the specified report and period, not a live programme-wide total.

REPORTED HOUSEHOLD COVERAGE

VPA1 households in the reporting period

Source: VPA1 monitoring report, SDWS 26, p. 56; SDG 6, p. 60. Open the official VPA1 monitoring documents.

DOCUMENTED VERIFICATION VISIT

VPA1 field inspection and interviews

Locations named in the interview records

The report’s end-user interview table names the following locations in Anantapur district, Andhra Pradesh, India. Dates below are interview dates, rather than installation dates.

• Illuru: 18 February 2026.
• East Narsapuram: 20 February 2026.
• Sodanapalli: 20 February 2026.
• Bodiganidoddi (Rotary Puram): 20 February 2026.
• Garladinne: 20 February 2026.
• Thimmampeta: 21 February 2026.

Source: verification report, section D.4, pp. 12-16. These are locations named in the end-user interview table, not a complete inventory of inspected tanks or a mapping of the photographs below.

What the verification report concludes

Section D.5 records 31 end-user interview samples and a reasonable level of assurance. Section G gives SustainCERT S.A.’s opinion that the project meets the relevant Gold Standard requirements applicable to that monitoring period. The review combined inspection, interviews, monitoring records, calculation files and other supporting evidence.

The verification opinion concerns the specified reporting period. It does not establish current operating status at every installation or, by itself, a subsequent credit issuance. Issuance and retirement records are listed separately in the project evidence hub.

Source: GS13130_MP2_VER_Report_17062026_clean_SgACM.pdf, report version 2, completed 11 June 2026; p. 1, sections D.3-D.5, pp. 11-16, and section G, pp. 39-40. Open the official VPA1 document list.

DOCUMENTED VERIFICATION VISIT

VPA2 field inspection and interviews

Locations identified as VPA2 in the interview table

• K.K Agraharam: 18 February 2026.
• Venkatampalli: 18 February 2026.
• Ipperu: 19 February 2026.
• Thimmapuram (Karutlapalli): 19 February 2026.
• P Yaleru: 19 February 2026.
• Talupur: 19 February 2026.
• Kasapuram: 21 February 2026.

Source: section D.4, pp. 12-15. The table also contains baseline-survey and laboratory interviews, which are separate from these VPA2-labelled locations. These are interview dates, not installation dates or a statement that each location was operating throughout the 2025 monitoring period.

Verification opinion and reporting scope

Section G gives SustainCERT S.A.’s opinion that the project meets the relevant Gold Standard requirements applicable to the specified monitoring period. The report describes reasonable assurance supported by document review, monitoring data, calculation files and other evidence.

The visit records are separate from the report’s monitoring-period coverage and subsequent credit issuance. They do not identify which photographs below were taken during the audit.

Source: GS23337_MP1_VER_Report_Clean_SgACM.pdf, report version 02, completed 21 August 2026; p. 1, sections D.2-D.5, pp. 10-16, and section G, pp. 35-36. Open the official VPA2 document list.

Community feedback and grievance records

Section G of both monitoring reports describes a formal grievance mechanism for community feedback about water access, quality and infrastructure.

• Local contact and awareness. The reports describe liaison with village leaders, community meetings and awareness sessions explaining how people can raise concerns.
• Recording and follow-up. A grievance book and digital records support the tracking of concerns and responses. The reports describe feedback records, including images and voice notes, held in a central system.
• Period-specific outcomes. Both reports state that no grievances were received during their respective monitoring periods: 1 February – 28 October 2025 for VPA1, and 2 June – 31 December 2025 for VPA2.

The grievance summary describes the reports’ recorded feedback process and outcomes. It does not establish that no concerns arose outside those periods or replace the underlying consultation records.

Sources: VPA1 report, section G, pp. 77-78; VPA2 report, section G, pp. 78-79. Open the VPA1 official documents or VPA2 official documents for the full reports.

Reading field evidence

Installation photographs provide context for equipment and water collection. Water-quality measurements, modelled estimates and certification records are different types of evidence; photographs alone do not establish treatment performance or carbon-credit certification.

FIELD PHOTOGRAPHS

Installation context & water collection

Explore equipment installations and water collection in the photographs below. Select a photograph to open the larger image.